IMPROVEMENT OF THE RELIABILITY OF EMERGENCY GENERATORS

Abstract

The paper shows how the operational parameters and stability of independently operating generators (island mode of operation) could be influenced and improved, respectively, even during the design process by the approximative method of calculation. It presents the main types of generators in island operation and their characteristics, which may be helpful in selection of the emergency generator. The publication discusses the peculiarities of the special operation and load, respec- tively, giving advice to the investigation of the effects of saturation, asymmetric mode of operation and overload. It directs the attention to the advantageous properties of the less known and investigated asynchronous-synchronous generators.